Bulk 3/8"-7 Hex Lag Screws Stainless Steel 316 (A4)

Marine-Grade, Corrosion-Resistant Fasteners for Reliable Wood Connections

Enhance your marine, chemical, and outdoor projects with our premium 3/8"-7 Hex Lag Screws, crafted from 316 (A4) stainless steel. These lag screws—often called lag bolts—feature a 3/8" diameter and 7 TPI (threads per inch), providing excellent holding power in wood and outstanding corrosion resistance in harsh environments.

The hex head design allows for easy installation using a wrench or impact driver. With coarse threads and a sharp point, these screws ensure maximum grip in wood, but remember to pre-drill pilot holes to prevent splitting and ensure proper alignment. These marine-grade screws are perfect for securing beams, constructing waterfront structures, or handling tasks where exposure to saltwater, chemicals, or moisture demands the highest durability.

Key Benefits of Our Stainless Steel 316 Hex Lag Screws

• Marine-Grade Corrosion Resistance: 316 (A4) stainless steel resists rust, pitting, and corrosion, even in saltwater or chemical-rich environments.
• High Holding Power: The 3/8" diameter and 7 TPI coarse threads deliver reliable, long-lasting connections in wood.
• Durable Strength: Suitable for moderate to heavy loads in challenging conditions.
• Easy Installation: The hex head design allows driving with common tools—just pre-drill your pilot hole first.
• Stable Connections: Once installed, these lag screws form secure, semi-permanent bonds that resist loosening over time.

Why Choose Our Bulk Lag Screws?

• Bulk Discounts: Perfect for marine professionals, contractors, and large-scale projects seeking volume savings.
• Wholesale Availability: Ideal for B2B customers needing substantial quantities over time.
• Quality Material: 316 (A4) stainless steel ensures superior corrosion resistance and long-term strength.
• Versatile Use: Suitable for marine construction, chemical processing facilities, outdoor decking, fencing, and more.

Proper Pilot Holes and Installation Tips

Choosing the correct pilot hole size is crucial for preventing wood splitting and ensuring maximum holding power. For detailed guidance, refer to our Lag Bolt Pilot Hole Size Blog.

• Pre-Drilling: Follow recommended pilot hole sizes for best results.
• Use Proper Tools: An impact driver or wrench is ideal. Avoid over-tightening to prevent head or thread damage.
• Ensure Correct Alignment: Drill pilot holes carefully and straight to achieve maximum holding power and proper installation.

Product Specifications

• Diameter: 3/8"
• Thread Pitch: 7 TPI (Coarse Thread)
• Head Style: Hexagonal Head for easy driving
• Material: 316 (A4) Stainless Steel
• Standards Compliance: Meets common industry standards for lag screws

Ideal Applications

• Marine Construction: Perfect for docks, piers, and other saltwater-exposed structures.
• Chemical Processing: Ideal for areas exposed to aggressive chemicals requiring top-tier corrosion resistance.
• Outdoor Installations: Great for decks, fences, pergolas, and garden structures in harsh climates.
• Heavy-Duty Tasks: Suitable for scenarios demanding maximum holding power and long-term reliability.

Buy in Bulk and Build with Confidence

Choose our 3/8"-7 Hex Lag Screws in 316 (A4) stainless steel for secure, durable connections in the toughest environments. With bulk and wholesale pricing, Monster Bolts provides top-quality marine-grade fasteners that stand the test of time. For advice on correct pilot hole sizes and best practices, explore our Lag Bolt Pilot Hole Size Blog.

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